At the lower end, the 11 lumbar, sacral, and coccygeal dermatomes are often grouped together as the lower extremity dermatomes. A spinal nerve root is a bundle of nerve fibers that branches off ...

[24–27] The clinical decision for a nerve root involvement required a history ... sensory loss in the L5 dermatome, and the muscle power for the hip abduction, ankle dorsiflexion, ankle eversion ...

The tests were the straight leg raising test, and tests for motor muscle strength, dermatome sensory ... findings of nerve root impingement in patients with chronic lumbar radiculopathy is low ...